1N5945APE3/TR8

Single Zener Diodes Overview

The Microchip Technology 1N5945APE3/TR8 is a glass-encapsulated Zener diode with a nominal voltage of 68 V and a 2% tolerance. It operates in the DO-41 axial package, providing a steady-state power dissipation of 1.5 W at 25°C ambient temperature. The device features a maximum dynamic impedance of 120 Ohms and a reverse current of 1 µA at 51.2 V. It supports an operating junction temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed hard glass construction with tungsten slugs for enhanced reliability and lower thermal resistance.
• Inherently radiation-hardened design suitable for demanding environments.
• Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 method 1020.
• Flexible axial-lead mounting terminals compatible with standard through-hole processes.

Single Zener Diodes Applications

• Voltage regulation across broad ranges of operating current and temperature.
• High-reliability aerospace and defense circuitry requiring radiation hardness.
• Military-grade electronic systems utilizing MIL-PRF-19500 screening standards.

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required RoHS compliance status and tape-and-reel packaging configuration. Confirm the exact voltage tolerance level corresponds to the 'A' designation within the official part nomenclature. Ensure the procurement channel sources components directly from authorized distributors to guarantee authenticity and traceability.

Single Zener Diodes Selection Notes

Select this component when a precise 68 V reference is required alongside high thermal stability and hermetic sealing. The 2% tolerance offers tighter regulation than standard commercial equivalents. Consider the axial lead format for applications where surface-mount alternatives are unsuitable or where mechanical robustness during assembly is critical.

Single Zener Diodes Part Context

This device belongs to the 1N5913BG–1N5956BG series of 1.5-watt glass Zener diodes manufactured by Microchip Technology. The series provides a wide selection of voltages ranging from 3.3 V to 200 V. The 'G' suffix indicates a glass casing, while the 'e3' suffix denotes RoHS compliance.

Single Zener Diodes Replacement Considerations

Equivalent plastic-body versions exist as 1N5945BP. Surface-mount alternatives include the SMBG(J)5945B and SMAJ5945B packages. Verify that any substitute maintains the necessary hermetic seal and radiation hardness if those specifications are mandatory for the application.